.btn {
  display: block;
  height: .3rem;
  color: #fff;
  font-size: .14rem;
  padding: 0 .1rem;
}

.btn.btn-primary {
  color: #fff;
  background-color: #337ab7;
  border-color: #2e6da4;
}

.btn.btn-warning {
  color: #fff;
  background-color: #f0ad4e;
  border-color: #eea236;
}

.btn.btn-danger {
  color: #fff;
  background-color: #d9534f;
  border-color: #d43f3a;
}